A recent Trump executive order defines sex based on gamete size. But the order oversimplifies genetics, hormones and reproductive biology.

A sperm cell and an egg cell each contain half the DNA to make a person. Encoded in that DNA are genes – instructions on how to make everything from eyelids to elbows. Some traits, like height ...

Scientists have discovered how a sperm and an egg fuse together, in a way that resembles a ‘lock and key’. New research ...

Half of their genes come from each parent. Sex cells are called gametes. These are sperm and eggs (or ova) in animals, and pollen and ova in plants eggs (or ova ) are female gametes sperm are male ...

According to recent reports, experts believe this technology may become a reality within the next two to ten years, ...

At the International Summit on Human Genome Editing, held in March 2023 at the Francis Crick Institute in London, Japanese ...

Trump’s recently put his ignorance of the biology of human reproduction on display with this pronouncement: “The executive order declares there are only "two sexes, male and female" and defines a ...

Technology reprograms stem cells or skin cells to act as either eggs or sperm, a technique that has been successful in mice. Scientists produced a healthy offspring from two male mice. While the ...